Ray Jr, H.L., Marcelino, J., Braga, R., Horwat, R., Lisien, M., Khaliq, S.

Introduction
Trauma is one of the primary causes of tooth loss and pulpal injury in adolescents and children. Prior to regenerative endodontics, treatment of necrotic, immature teeth with open apices was limited to long-term calcium hydroxide (Ca(OH)2) apexification and subsequent root canal therapy or extraction. Through revascularisation, retention of these teeth can be achieved, and the elimination of patient symptoms and the radiographic appearance of continued root development were obtained.

Case review
This report illustrates a revascularisation protocol through a case where platelet-rich fibrin (PRF) was utilised as an autologous scaffold for traumatised, necrotic, immature teeth with incomplete root development. Through consistent follow-up reports, comprising both clinical examination and radiographs, marked improvement in the condition of the traumatised tooth was noted.

Discussion
This case demonstrates the feasibility of utilising PRF as an effective treatment protocol for traumatised teeth in lieu of traditional treatment protocols, such as long-term calcium hydroxide (Ca(OH)2) apexification or extraction. The choice of utilising PRF, as opposed to other platelet concentrates such as platelet-rich plasma (PRP) or a blood clot, lies in PRF’s ability to allow for a slow, long-term release of autologous growth factors.

Dental Traumatology 2016; 32 (1): 80-84.